Shoe machine



Dec. l, 1931.

A. R. MORRILL SHOE MACHINE 14 Sheets-Sheet Original Filed June 8, 1926 A. R. MORRILL Dec. l, 1931.

SHOE MACHINE 14 sheets-shea 2 Original Filed June 8, 1926 www NWN MQ Evenr Vig A. R. MORRILL 1,834,471

DEC. l, 1931.

SHOE MACHINE Original Filed June 8, 1926 14 Sheets-Sheet .'5

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Wzzess Mm, wim WM KM A. R. MORRILL Dec. 1, 1931.

SHOE MACHINE 14 sheets-shet 4 Original Filed June 8, 1926 Dec. l, 1931. Af R. MORRILL SHOE MACHINE June 8, 1926 1 4 Sheets-Sheet 5 Original Filed A. R. MORRILL Dec.,1, 1931.

SHOE MACHINE Qriginal Filed June 8, 1926 1 4 Sheets-Sheet 6 A. R. MORRILL Dec. 1, 1931.

SHOE MACHINE Original Filed June 8, 1926 14 Sheets-Sheet 7 H1 figg, i 11 mi ma Z7! I Z l Evenr @511205 2&9 210 /t @MM @MZ Dec. l, 1931. A R MORRlLL 1,834,471

SHOE MACHINE original Filed June a, 192e l4 sheets-sheet s 204 2f 276 200 277 Zll f" 3 159 *a i.; I '.158 6g/:E17 w IHH% 7427 2.96 l ;L lmll I||i 156 1;?! 4 G f5 1.52 j j 50 70 Zai. J 96 'ZJ-'l 90 az ZJZ 35 13.9 66 :3523;

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SHOE MACHINE 160 Z/riirl Filed June e, 192e;l 1,4 Sheets-sheet 9 @14 140 f J (vga.

Dec. 1, 1931. A. R. MoRRlLl. 1,834,471

.SHOE MACHINE original Filed June 8, 192e 14 sheets-sheet 1o 2.92 S 2.95 253)\ 165 XV 5 if/254 w-/ 162.9 155 1.96 175 IHIIIIHHIIIIIHIII H1 IIIIIIIHIIHI!! |||r|l|| Il l i111 y MW'" 'l Humm ||||||||||||||||||||||u 150 1541 27aL 152 WDM-6 jvwf wes@ A. R. MORRILL Dec. l, 1931.

SHOE MACHINE original FiledJune 8, 1926 14 Sheets-Sheet 11 A. R. MORRILL Dec. 1, 1931.

SHOE MACHINE 14 Sheets-Sheet l2 Original Filed June 8, 1926 A. R. MORRILL SHOE MACHINE Original Filed June 8 1926 14 Sheets-Sheet 15 A. R. MORRILL Dec. 1, 1.931.

SHOE MACHINE 6M MW @il 14 Sheets-Sheet 14 original Filed June s2., 1926 Patented Dec. 1, 1931 UNrrn sus `Ely-NT ALFRED R. MORR1LL,` or .B EvRRLY, MASSACHUSETTS, ASSIGNOR To UNITnnsHon MACHTNERY CORPORATION, or .rATnRsoN, NRW JRRsEY, A CORPORATION OF NEW JERSEY Original .application filed .Tune 8, 1926,:4Seria1 No. 114,441. Divided and this app 1929, Serial No. 358,342.

The present linvention relates to shoe-machinesand is herein shown as embodied in a machine for operating on shoes ofthe type in which the shoe in supported'upon a ack and in which the jack and the means forV operating on the shoe are moved relatively to transfer the point of operation about the shoe, and to change the relative positions of the shoe andthe operating means to cause the shoe to be presented properly to the operating means as the point of operation is transferred about the shoe, allV of the relative movements of the shoe and the operating means being produced and controlled by auto- While the matically acting mechanisms.

several features of the present Vinvention `are particularly applicable to automatic shoe machines oi the type above referred to, certain features of the invention are 'also capable of use in other typesof automatic machines or inmachines in which the shoe is held in position by the operator. VIt,v is also to be yunderstood 'that exceptas deined in the claimS,-the

. several features of the invention are not lim- Topham, No.1,616;714; dated February S, i927. rllhe several features of the present invention will be readily understood'bythose skilled in the art from the following description; but it may be stated at this point-that they relate generally to certain improved conctions and arrangements of parts for rendering more certain and reliable the Operation oic the mechanisms which automatically produce or control the changes' in 'the relative positions of the shoe and the operating means.

SHOE MACHINE lisation filed April` 26, Renewed April 24, 1881. f

In the drawings, Fig. 1 is aview iny front elevation'of an automatic welt shoe sewing machine embodying the several l'eaturesy of; the present invention, only so muchof the machine being illustrated as is necessary to show the connection of the present invention therewith; Fig. 2 is af view in side elevation of the machine with a portion of the frame ries., j

broken away and looking toward the lett of Fig. 1; Fig. 3 is a view in front elevation partly in section of the upper part of the driving and stopping mechanism of the machine; 'Fig 4 is a sectional-,plan view of the portion of the machine illustrated in Fig. 3; Fig. 5 is a detail plan view supplementing the illustration of Fig. 4; Fig. 6 is aplan view of the base portion of the machine with the jack spindle shown in section and a portion of the `top plate of the machine base broken away to show underlying parts; Fig. 7 is a plan view of the base portionoi;l the machine with the top plate vof the base partly broken away and with a portion of the mechanism shown in section below the plane of Fig. 6; this ligure also showing the position of the parts `with the jack at the limit of its movement to the left and with the welt cutter in the act of severing the welt: FigS is a. detail plan view of a portion of the mechanism for actuating the ack to pull the welt through the welt guide after the completion of the welt Sewing operation; Fig. 9 is a detail sectional plan view showing certain of the parts of the 'driving andv stopping-mechavnism in the positions they assume during the stopping of the machine in case of the breaking of the thread; FigflO is a detail sectional view of a portion ofthe driving mechanism; Fig. 11 is a detail sectional viewrofa portion of the mechanism illustrated in Fig. 10 but looking in the opposite direction; Fig. 12 is a detail sectional view similar to Fig. 11y but taken on a dili'erent plane and with theparts in a different position; Fig.v 13 is a detail Sectional view talren'on the line 13-13 of 11; 14 is a detail plan view partly in section of a portion of the mechanism through which the pattern camshaft is driven .and showing also a portion of the auxiliary mechanism'for driving the cam shaft vafterthe main shaft is thrown out and also a portion of the mechanism for reversely driving the pattern cam shaft when the machine is stopped upon the breakage of thread; Fig. 15 is a detail plan view of certain of the parts illustrated in Finn 14; Fig. 16 is a detail plan view of certain of the parts illustrated in 14 but showing the position which they assume during the stopping of the machine at the end of the sewing operation; Fig. 17 is a detail sectional plan view similar to Fig. 14 but taken on a lower plane and showing` particularly the mechanism for disconnecting certain of the gears in the main driving train when the pattern cam shaft is rotated by the auxiliary mechanism; Fig. 18 is a sectional elevation taken on the line 18-18 of Fig. 17 g Fig. 19 is a detail sectional view taken on 'the line 19--19 of Fig. 17; Fig. 2O is a detail plan view of certain mechanisms at the upper end of the pattern cam shaft and illustrating particularly the means actuated by the camshaft for opening the main driving clutch in case the stopping mechanismfails to operate at the completion of the operations performed by the machine; Fig. 21 is a detail sectional view illustrating the means for preventing the closing of the main driving clutch while the levers actuated by the pattern cam shaft are out of engagement with their cams; Fig. 22 is a. detail view in side elevation of the lever which opens the main driving clutch; Fi g. 23 is a detail sectional view of the upper end of the rock shaft upon which the pattern cam levers are mounted; Fig. 24 is a detail sectional plan view illustrating particularlyv the construction of one of the levers actuated by the cam shaft; Fig. 25 is a detail view showing in side elevation the mechanism illustrated in Fig. 24 and also the operating handles at the upper end of the pattern cam shaft and the rock shaft upon which the cam levers are mounted; Fig. 2G is a detail sectional plan view illustrating particularly a checking or snnbbing device applied to one of the cam levers; Figf27 is a horizontal sectional view of the cylinder and piston of the snubbing device; Fig. 28 is a sectional view taken on the line 28-28 of 26; Fig. 29 is a detail cross sectional view taken on the line 29-29 of 28; Fig. 30 is a detail sectional plan view illustrating particularly a snubbing device applied to another one of the cam levers associated with the pattern cam shaft, the plane of the figure being indicated by the line 3(380 on Fig. 32; Fig. 31 is a detail sectional view talen on the line 3l of Fig. 30; and Fig. 32 is a det-ail sectional view taken on a plane passing centrally through the cylinder of the snubbing device substantially at right angles to the plane of Fig. 31.

The machine herein disclosed as embodying the present invention comprises sewing mechanism mounted in a sewing head or frame 69 supported upon the base 70 of the machine (see Figs. 1, 2, and 6), a shoe supporting jack comprising a toe supporting arm 71 rigid with a hollow spindle 72 and a heel supporting arm 7 3 pivoted at its lower end upon the upper end of the spindle 72, a jack supporting structure comprising a horizontal arm 74 in the forward end of which the lower end of the jack spindle is rotatably mounted by means of a gimbal joint, a support 7 5 upon which the arm 74 is mounted to swing vertically, a frame 7 6 pivotally mounted at its lower end in the machine base so as to be capable of swinging about a horizontal axis and upon which the support 75 is mounted so as to swing' about a substantially vertical anis, a vertical cam shaft 77 mounted in the machine base and carrying a series of cams 78 and a driving and stopping mechanism supported in a frame 79 mounted on the machine base at one side of the frame 69 of the sewing mechanism. Thepa tern cam shaft 77 makes one complete rotation during a complete cycle of operations of the machine, this cycle consisting of the sewing of the inseam, the severing of the thread and welt at the completion of the sewing, the moving of the jack to the front of the machine away from the sewing devices, and the rotating of the jack in a reverse direction to bring it to its initial position.

During the sewing operation, tipping and rotating movements are imparted to the shoe to maintain the shoe at all times in the proper position with relation to the sewing instrumentalities, tipping movements being imparted by moving` the lower end of the jack spindle forwardly and rearwardly of the machine and laterally, and rotating movements being imparted by rotating the jack spindle. For moving` the lower end of the iack spindle forwardly and rearwardly. a cam lever 80 is provided, one arm of which is pivotally connected to the frame 76 and the other arm of which is arranged to engage one ofthe cams 7 8 on the patern cam shaft. The lateral movements of the lower end of the jack spindle are produced by oscillating the support 7 5, the lower end of which is provided with a forwardly projecting arm 81 which is connected by means of a linlr 82 to one arm of a lever 83, the other arm of which is engaged by a cam on the pattern cam shaft. To rotate the jack spindle, a wheel is'provided at the lower end of the spindle around which a cord S4 passes. One end of the cord after passing over a pulley near the inner end of the arm 74 is secured to a wheel 85 and the other end of the cord after passing over a pulley near the inner end of the arm 74 and over aA pulley 86 on the base of the machine leads to a weight 87. The hub of the wheel 85 is provided with a pinion 850 which .meshes with a segmental rack 4on the outerendrof a-.leverl 88, vthe otherfendfof which .lever is engaged by a cam on vthe pattern camshaft (FigBO). l

During the-sewing operation the shoe is vfed by the feeding devices of :the sewing mechanism `and also :by a feed Il ever which is actuated from ithe -cam on the pattern cam shaft and which controls the longitudinal position of the shoe in the machine. The feed lever (see rFig. 7j) 'comp-rising an farm 89 pivotally mou-nted so as` to swing 1in a` horizontal plane, isconnected at its forward end by lmeans ofjabar 90 to Ithe toe sup porting arm vof the jack. -rllhe feedle'ver `is connected by means of clinks -91 and 92 Vto one .arm of a lever "93, the other `arm yof which engages a cam on the 'gpattern cam shaft. The linksu91 vand 92 are' pivotally connected together yand vto the free end Vof a swinging` guiding link9l. l'lhe link 94 is fulcrumed upon a lever .95 -which -is held locked in yposition during the operation 'on a shoe. To adapt Athe machine for operation on shoes of different sizes, the lever is pivotally mounted upon the machine base so that it-can .be adjusted to change the ;positionof the fulcrumlof-the swingingguiding link 94. The fulcrum carrying lever 95V is automatically vadjusted at the beginning Vof the operation in accordance with the size of the shoe, and is Vheld vlocked in :adjusted position in substantially -thesame manneras in the machine of Patent No. 1,616,171,4- above refer-red to. The construction so far described is substantially the same as that of the machine disclosed in the patent hereinbe'fore referred to. From an inspection of Figs.' 1 and 6, it will be 4obvious that the actionv of vthe-cord 9d-.and weight 87 isto rotate the ackin a reverse direction and tovenert a force on the jack supporting` structure tending to maintain the cam levers through which the tipping' movement-s are imparted to the ack lin contact with their cams. A feature of the present invention is'embodied in a structure whereby the cord 84 1and weight 87 lare also utilized to `exert a -forceon the feeding -arm S9 of the jack feedingmechanismand the fulcrum carrying 'lever 95., `tending to keep the kcam lever 93 through which 'the 'feeding lever is yactuated in contactwithits cam, and tending' to move ythe lfulcrum carryin'gxlever 95 towards one limit of its adjustment. In the construction illustrated, the -cord 84' insteadof beingattae'hed directly-to the weight 87 passes around a pulley y111 secured tothe weight (see Figs. 1 and 6) and then passes upwardly over a pulley 112 on :the machine frame, and then `horizontally around a pulley 113, also mounted on the machine frame, then around a pulley 1141 mounted `on the fulcr-um carrying lever 95, then around `a pulley 1.15 mounted on the `.pivot .of the fulcrumcarry- Vpinion 850 on Ithehub of the wheel 85.

ing lever, :and is finally .secured to the `feed -lever.` c 7 f Another feature offthe lpresent'invention is embodied inadeviceordevices for checking or retarding vthe reverserotation of ith'e jack andthe Vmovements of the levers actu- `:ated'by .the ypattern camshaft `under the iinfluenceof the weight87 when the cam levers fpass off of the high portions lof their .cams at the completion ofthe rotation of the `pattern cam shaft. ln the construction .illustra-'ted inthe drawings, a checking or snub- -bing device "is associated with thefcam lever 93 from .whichthe .feed lever is actuated 'and v.with the cam lever. 88 through which the fwheel 85 is rotated to impartirotating movements to the jack.

The snubbing device associated with the l lever 93 (see :Figs 26 to 29 inclusive)y com- Vprises-a cylinder 116 in which a piston 117 f,

is .mounted to reciprocate, the cylinder being pivotally ysupported at one end on the machine frame and the piston being` connected to ethe lever 93 'by'meansof a connecting rod 118. Thecylinder 116is closed at both ends and is illed with asuitable fluid such as oil. A passageway 119 `extends longitudinally throughl the piston and in `orderfto permit a free-flow of the fluid in one direction and to obstruct the flow of fluid in the opposite direction -a ball valve 120 is provided in the passageway 4119. The .piston is thus substantially free'to `move in one direction, but its movement Ais `retarded in the opposite direction; To `regulate this retarded movement,

a :relief passageway 121 extends longitudi- Y nally thro-ugh the piston 11:7 and the flow of oil :through'this passageway is regulated by means of an adjustable pin 122' arranged transversely of v`the passageway. y

The snubbing device for retarding the movements of the wheel 85 and cam lever'SS comprises an oscillating segmental piston 123 mounted to move back and forth in a semi-cylindrical chamber formed in a casing 1241 (see Figs. 30, 31 and 32). For convenienceof construction, the casing 1211 vis formed with a cylindricalchamber oneehalf of which is filled byA a stationary semi-cylindrical yblock 125. Thepiston 123 projects yfrom a `vertical shaft 126, :the lower end of which is reduced in'size and is journalledin a plug 127 which closes theupp'er end Vof the chamber in the casing. To the lower end of the shaft 126 is secured an arm 128 formed at its outerend as a segmental gear which lmeshes with the rlhe Wheel 85 is thus connected to the piston 123 so that the piston fis oscillated in the chamber'by the forward and backward movement of the wheel. rlhe chamber in Vthe casing 124 Vis hl-led with suitable `fluid such as oil, and in order :to retard the movement of the piston in one direction while permitting it to move with substantial freedom` in lthe opposite direction, the piston is provided'with a passageway 129 leading from one side of the piston to the other and with a check ball valve 130 to prevent the ow of liquid in one direction. To provide for a comparatively slow movement of the liquid from one side of the piston to the other, a passageway 131 is formed in the block 125 communicating with the chamber in the casing 1211 at opposite sides of the piston. Relief passages 132 and 133 are also provided in the bottom of the casing 124- so that the liquid is allowed to flow freely from one side of the piston to the other when the piston is in certain positions, as for instance, when it is in the positions it assumes at the time the shoe is being operated upon on either side at `the junction of the shank and forepart. At these points in the operation on the shoe, a reverse rotation is imparted to the shoe and by reason of these relief passages 132 and 133, these reverse movements are not resisted. by the snubbing device. To provide a piston operating mechanism havingl the requisite amount of strength, the arm 128 which is connected to the piston shaft is made integral with anl forms a part of a yoke 1311 Which straddles the casing 1211 and Which is provided with a slot engaging a key 135 formed at the upper end of the piston shaft 126.

The illustrated machine, like the machine of Patent No. 1,616,7111hereinbefore referred to, is provided With a driving mechanism -from Which the sewing mechanism and the pattern cam mechanism are driven, With a stopping mechanism which at the completion of the serving` operation is automatically thrown into operation and which acts to disconnect the sewing and pattern cam mechanism from the driving mechanism, With an auxiliary mechanism normally idle, but which is automatically connected to the driving mechanism When the sewing and the pattern cam mechanisms are disconnected, and with means actuated by the auxiliary mechanism for causing the Welt to be severed and the jack to be moved outwardly and reversely rotated to its initial position.

The sewing mechanism and the vpattern cam mechanism are driven from asleeve 136 (see Figs. 1, 2, and 21) mounted loosely on a vertical shaft 137 which is driven continuously from an electric motor through reducing gearing, the last pinion 133 of said gearing meshing with a gear formed on the periphery of a friction clutch member 139 secured to the shaft. The sleeve 136 is provided at its upper end with friction clutch member 1110 cooperating with the clutch member 139. A spiral gear 1111 is formed on the sleeve 136 and this gear meshes with a spiral gear 1-12 secured to the cam shaft of the serving i ischanism. The spiral gear 111 also meshes with a spiral gear 1113 secured to the upper end of a vertical shaft 1411. This shaft at its lower end is provided with a clutch block 1115 (Figs. 10 to 12) connected tothe shaft by a key on the block engaging a transverse slot in the Vlower enlarged end of the shaft. rThe lower face of the block 1115 is provided With teeth to engage correspondingly shaped teeth on the upper surface of the enlarged upper end 1116 of a short vertical shaft 1117. Surrounding the shaft 1117 is a 'sleeve 1-13 which is driven from the shaft 111? through a variable speed mechanism and which is provided at its lower end with a pinion 119. From the pinion 1119, the pattern cam shaft is driven through a train of gears comprising a gear 150 meshing With the pinion 149, a 151 concentric with the gear 150 and secured thereto, a gear 152 meshing with the gear 151 and securedit-o the lower end of a short vertical shaft 153, an elongated pinion 151i fast on thc shaft 153, a gear 155 meshing with the pinion 154;, and a series of gears 156 secured together and to the `gear 155 arranged to mesh with a gear 151 at the upper end of the pattern cam shaft. T he pattern cam shaft is thus driven continuously so long as the members of the main driving` clutch 139-1110 are end, the speed of rotation depending on the a tment of the variable speed mechanism between the shaft 1117 and the sleeve 118. rllhis variable speed mechanism (see Figs. 10 and 11) comprises ratchet Wheel 158 fast on the shaft 117, a series of pawl carriers 159 pivotally mounted on the upper end of the sleeve 111-3, a payvl 160 mounted on each pawl carrier and spring pressed into engagement With the ratchet 15o and an adjustable cam plate 108 provided With a cam grove engaging pins 161 projecting upwardly from the pawl carriers. rlhe cam plate 108 is adjusted automatically at the start of the operation, on a shoe in accordance with the size of the work, substantially as in the machine of Patent No. 1,616,7111.

The pattern cam shaft is provided with a series of sets of cams as in the machine of Patent No. 1,616,714, and these cams are brought into cooperative relation with the cam levers by a longitudinal adjustment of the cam shaft and the cams held thereon. The adjustment is made by hand through mechanism which is fully described in said patent.

To hold the cam levers away from the cams While the cam shaft is being adjusted, the sha-ft 165 upon which the cam levers, With the exception of the lever 93, are mounted, is provided With shouldered collars 166 (see 21 an d which when the shaft 165 turned by an arm 167 secured to the upper end of the shaft the hubs of the levers and move the cam ends of the Levers away from the cams. To move the cam lever 93 through which the feed lever is actuated avvay from its cam, a link 163 is connected to one of the lever 93 (see lEigs. 6, 20, and 21) and this link has a pin and slot connection with the I f viewed in Fig. 8.

ing bolt.

Vpointin the rotation of the sleeve 186 and of v outer end of an arm 169 secured .to the shaft 165. v v Y.

The stopping mechanism which atthe-completion oit the sewing operation actsto disi connect the sewingV mechanism `and the pattern vcam mechanism from the driving mechanism comp-rises a bell crank lever 170 (see Figs. V1, 2, 8, and 21)" the horizontalfarm of which engages a cam .groove 171 inthe sleeve 13(3.and the vertical armV of which is pro-r vided at its lower endwith a hole adapted to receive aloclring bolt 172 (see also Figs. 1,

4, and 5). During the sewing-operation the sleeve136 is held in its upward position withV the clutch members `1404-139 in engagement by means of a spring 178 (see Fig. 21) interposed 'between the lower end of the sleeve and a flange on a bushing 174 surroundingthe shai't137 and resting on a shoulder onthe machine trame. Also during the sewing operation, the locking bolt- 172 is held in re-v tracted position so that the bell crank 170 vibiates idly. rlhe lockingbolt 172 is mount- Y ed in one end of a horizontally movable lock ingbolt carrier 175 (see Figs. 3,1' 4, and 5) the other end of which projects' beyond the -inachine frame and is acted upon by a'spring Y17 6 Whichbears against a collar on the carrier and tends to move the carrier towards the left, asv Lt the end of the sewing operation, the looking bolt 172 is released and is forced by its spring into the hole in the bell cranlrl lever as soon as theV hole in the Ybell crank is brought into alinement with the lockrhis occurs at a predetermined the actuating cam shaft ofthe sewing mechanism and locks the lower end of the vertical arm .of the bell crank to `the locking bolt car rier. ContinuedA rotation of' the sleeve 136 oscillates the bellcrank in a direction toy movefthe ylocking bolt carrier to the'right, as viewed in Fig. 8,' against the tension of the spring 176. A' partial return movement is `:permi ted .to the locking bolt-carrier and thenv its return :movement to the letti-s stopped by a spring'pressedlatch lever'177 (see Fig. 1) aeprojection on the-upper side/'of which engagesa shoulder on the locking bolt carrier.l

rilhe lower end of the vertical arm'ofthebelh crank is now held" stationary andcontinued rotation of the sleeve 136 moves the sleeve downwardly', thereby disconnecting the clutch" members 14o-189 and bringing a 4 brake member 178 formed on the loweryend ot the sleeve 186 into engagement'with ailiitedfV brake member 179. rlhis disconnects the sewing` mechanism and the pattern `cam mechanisnifrom-the driving mechanism and stops the sewing mechanism with the, actuatingcain shaft of the sewingv mechanism in a predetermined' angular position, in whichv posio tiontli'e needleis retracted from .the work. Y rlhe means for holding theloclingibolt V172v iii-retracted :positionduring the sewing oper#AY ation comprises a horizontallyarranged levery 1480V (see'Fig. 5), one arm ofwhich is forked.` andlenfgages the innerv face of a disc'secured to theouter endofthe locking bolt, and the' other arm ofrwhich is providedwith a` bevel' 70 gearseginent meshing` with a bevel :gear seg#` nientv onY the upwardly projectingarmiofa lever v181 (see also Figs. land ThisleverV isarrangedto swingin a lvertical plane and the armopposite the bevelgear segment is 75'.

pivotally, connected to the upper. endy ofiavertical rod 182. This rod is` acted upon by a spring 188 which tends to raise the rodand` the rod is .providedwith .a lateralprojection (see Figsl, 9, 14, 15V and 16), which dur# 8'01 ing' theV sewingoperation is'engaged by a. spring pressedlatch 185. The latch leverl 177 which limits the movement `ofthe locking bolt carrier-'to the lett during the operation,

of the stopmechanismis providedwith aslot" 85- operation.: rlfhe latch 185 is mounted to slidey 951" horizontally in guideways on .the machine frame and is provided Von its `upper surface I withl a Vfshapedfnotch opening towardsithe rod .which-is. engaged by alpin 187'5 projecting downwardly from theright'hand end of a 100 lever 188. Thislever is mounted to swing-in ahorizontal planeA and lits movements .either forwardly or rearwardly will causey the pin 187 to retractfthe latch 185, thereby throws.: l ing the stop mechanisminto operation.:

.The driving. and. stoppingl mechanism so-- far as described-.is substantially 'the same as.

thatforp .themachine disclosed inPatentNo. 1,616,714. Inthe present; machine, however, themechanism for automatically throw- 1wA ing the' stoprmotion intofoperationis actuf ated directly from the patternlcam shaft.

after it has'vmade nearly a complete revolu.V

tion. To secure this result, -a block 189 is.l secured to the upper-surface of the gear 157 at 11ar Vtheupper end of `the pattern camshafttsee'` Figs. 6, 7, 9 and 20) which block, after-ther. pattern cam shaft'has made nearly a com-V plete revolutiom'engages alever 19.0'pivot-A ally mounted at 191` and connected toa-rod 120 192. The forward end of the rod. 192 'is mounted to slide in a'guiding block A19,3 piv-r otally mounted on the machineframe and isv arranged to engage the end of a dog 194 pivotally mountedat the left hand' end'of ythe 125:

lever r188. This dogfis in the form of a bell;

crank with one arm. normally inposition tofA form in eil'ect a continuation off the rod 192.:- Tlhe dog 19,4ris interposedbetweenthe rod 192i and the lever `188 Yin ordertopermitithe lever' 130 to be moved rearwardly when the machine is stopped on account of a mis-stitch near the end of the sewing operation, as will be hereinafter described. lhe arrangement of the connections above described is such that as the pattern cam shaft nears the end of a revolution the lever 190 is rocked by the engagement therewith of the block 189, the rod 192 is moved longitudinally towards the front of the machine and the lever 188 is swung forwardly as indicated in Fig. 16 to withdraw the latch 185 and throw the stop mechanism into operation.

The auxiliary mechanism which is normally idle, but which is automatically connected to the driving shaft 137 when the sewing mechanism and the pattern cam mechanism are disconnected therefrom by the action of the stop mechanism, comprises an eccentric 195 (see Figs. 3, 9, 11 and 12) mounted to turn loosely upon a hollow stud 196 formed on the machine frame below and in axial alinement with the shaft 137. Vertically below the eccentric 195 is a clutch block 197 mounted to slide longitudinally on and to rotate with a continuously rotating shaft 198. 'lhis shaft is provided with a gear 199 which is driven from a gear 200 at the lower end of the shaft 137 through gears 201 and 202 (see Figs. 3, l, 10 and 12). 'lhe opposed faces of the clutch block 197 and the eccentric 195 are provided with teeth through which the eccentric can be driven from the clutch block whenever the block is raised into engagement with the eccentric. rlhe block 197 is engaged by the forked arm of a lever 203 the arm of which is provided with a projection arranged to be engaged by a projectionon the lower end of a rod 204.

.'lhe upper end of this rod (see Figs. 3 and l) is connected to an arm 205 on one end of a rock shaft to the other end of which is secured an arm 206 provided with a bevel gear segment meshing with a bevel gear segment on a horizontal arm 207 of a bell crank lever,the vertical arm of which is forked and engages the flanged sleeve at the left hand end of the locking bolt carrier 175. rEhe lower end of the rod 20ei (see Figs. 10

to 12 and 14 to 16) is arranged to move vertically between two pins 208 projecting upwardly from a short lever 209 pivoted concentrically with the latch actuating lever 188. lThe lever 209 is acted upon by two spring pressed plungers 210 mounted in the lever 188 and arranged so that their tendency is to keep the lever 209 in alineinent with the lever 188. Vith this construction, when the lever 188 is swung forwardly to throw the stop mechanism into operation the lever 209 will be retained in its original position by reason of the engagement of the side of the projection on the rod 2011 with the projection on the lever 203. As the stop mechanism operates the movementof the locking bolt carrier 175 first to the right, as viewed in Fig. 3, and then to the left, will raise and lower the rod 204, the rod being moved forwardly1 by the lever 209 as the projection on the rod passes above the projection on the lever 203 during the upward movement of the rod and actuating the lever 203 during its downward movement, as indicated in Fig. 12, to move the clutch block 197 into engagement with the eccentric 195. To permit the clutch block to move away from the eccentric and thus throw the eccentric out of operation, the rod 2011 is moved rearwardly to release the lever 203. This takes place after the eccentric has made a complete revolution. To thus move the lever 209 rearwardly, the lever (see Fig. 16) is provided with gear teeth engaged by teeth on one arm of a lever 211. At its other end the lever 211 is provided with a swinging dog 212 adapted to be engaged by a projection 213 on an arm 214 projecting from a rock shaft 215 which is roclred forwardly and backwardly during the rotation of the eccentric, the construction being such tnat during the forward movement of the arm the proj ection 213 passes the dog 212 without actuating the lever 211, but during the return movement of the arm the engagement of the projection with the dog actuates the lever 211 to return the lever 209 to its original position and thus move the rod 2011 out of engagement with the lever 203.

As has been stated, the mechanism actuated by the eccentric 195 includes a rock shaft 215. ylhis rock shaft is below and in vertical alinement with a rock shaft 216 (see Fig. 3), and is connected thereto by a lrey and slot so that the two shafts turn in unison. At its upper end the shaft 216 is provided with a laterally ext-ending arm 217 (see Figs. 3 and 9) to which is connected the eccentric strap and link 218 of the eccentric 195. From the shaft 218 the welt severing mechanism is actuated and from the shaft 215 the mechanism is actuated through which the jack is depressed and moved outwardly away from the sewing devices and also the mechanism through which a movement is imparted to the pattern cam shaft to complete its rotation so as to cause the jack to be reversely rotated to its initialposition. rlhese mechanisms are substantially the same as the corresponding mechanisms of the machine disclosed in Patent No. 1,616,714 except for a provision in the -mechanism for depressing the jack and moving it outwardly of means whereby a dwell in the movement of the jack is produced, after it has been depressed, to facilitate the welt severing operation. In the present machine, also, means are provided, actuated from the shaft 215, for moving the jack at the completion of the sewing operation so as to draw welt through the welt guide and thus permitv the welt to be severed between the welt guide and the shoe at a suiiicient 

